Home / 12,746.28-19,194.29-11,122.20

Finding the Fourth Proportional to 12,746.28, 19,194.29 and 11,122.20

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Solution

The fourth proportional to 12,746.28, 19,194.29 and 11,122.20 is: 16,748.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,746.28 : 19,194.29 = 11,122.20 : x
  2. Step 2: Convert to fraction form
    12,746.28/19,194.29 = 11,122.20/x
  3. Step 3: Cross multiply
    12,746.28x = 19,194.29 × 11,122.20
  4. Step 4: Simplify right side
    12,746.28x = 213,482,732.24
  5. Step 5: Solve for x
    x = 213,482,732.24/12,746.28
  6. Step 6: Final answer
    x = 16,748.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.